Swinging connection for silo-doors.



E. A. BRANDENBURG G. SCHMIDT.

SWINGING CONNECTION FOR SILO DOORS. APPLIOATIOH FILED APR.17, 1911.

1,009,889., Patented Nov. 28, 1911 Fig.1.

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' taken along the line a2w of Fig. 1.

- of the door b, the bearings (Z and d are bearings, and has cranks e and e atthe to the silo frame in a manner which will silo frame, inwardly,anol be also returned in adapted-to lie close to the silo wall and ensaid parts is adapted to be closed by a door UNITED STATES PATENT EMIL A. BRANDENBURG AND GEORGE SCHMIDT, or BREMER COUNTY, IOWA, ASSIGNORS T0 HENRY o. BRUNS, 0F WA'IEBLOO, IOWA.

SWINGING CONNECTION FOR SILO-DOORS.

plieation fild. pril 17,

To all whom it may concern:

Be it known that we, EMIL A. BRANDEN- BURG and GEORGE SCHMIDT, citizens of the United States of America, and residents of Bremer county, Iowa, have invented certain new and useful Improvements in Swinging Connections for Silo-Doors, of which the following is a specification.

Our invention relates to improvements'in swinging connections for silo doors, and the object ofour improvement is to provide a silo door with arms adapted for connection permit the door to be swung clear of the the same way to closely fit its casing; the door when thus swung open inwardly being tirely free of the door opening. This objectwe have accomplished by the means which we have hereinafter described and claimed,

ing drawings, in which:

, Figure 1 is an elevation of a silo door closed against its casing, and equipped with our improved swinging connections and Fig. 2 is a horizontal section of the same oSimilar letters refer to similar parts throughout the several views.

WVe have shown of a silo body only the casing parts a, and hi, the former being vertical uprights spacing apart and sup porting the ends of the horizontal beams h and The opening thus afiorded between Z) formed of slabs connected by battens. A trifle to one side of the vertical medial line secured to it at top and bottom. A verticalrod 0 has its ends mounted to rock in said ends which are bent at their ends f and f respectively, the bending forming two angles in each crank first toward the silo then upward and downward respectively for said cranks to enter bearing-holes in the said beams h and i. The lower crank-end f rests upon a washer or wear-plate g. The first bend in each of said cranks adapts the cranks to clear the corners of the uprights a 1 when the door is swung open, as is shown Specification of Letters Patent. Patented NOV. 28, 191111.

1911. Serial No. 621,552.

in Fig. 2, where the door Z) is represented as swung into the silo and back against its inner wall close to the latter, where itentirely clears the door opening. The door may be swung back to close it, or shifted to one side into place, which operation is made possible by reason of the peculiar swinging and free connection of the rock-body c with the door. Being supported both above and below by reason of the connections of the cranks of said rock-body with the beams 7L and i, the door is held firmly and prevented from sagging out of line, and is thus always free and easy to move, and always fits the casing.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is:

1. In combination, a door-casing, a door.

bearings on the upper and lower parts ofsaid door said casing having bei'iring-openings on its upper and lower beams to one side of the said door bearings, and a rockshaft seated in said door bearings with its ends bent at an angle and movably seated adapted to close said casing, bearings medially located on said door on its side directed toward the casing one above another, said casing havingbearing-openings in its horizontal beams to one siue of the door bear ings, and a rock-shaft movably seated in said door-hearings, with its ends so bent to ward the casing-bearings as to both enter and be movably seated in same and to arch over the adjacent side beam of the casing to clear same when the door is opened to perniit the latter to be swung bodily outwardto entirely clear the door-opening, and allow the door to lie closely parallel to the casing inner plane and to one side thereof.

Signed at WVaterloo, Iowa, this 30th day of lVlarch, 1911.

EMIL A. BRANDICXEEIRG.

GEORGE SCHMIDT. lVitnesses:

l/V. 7. Brian, (lno. C. Knnn'nor. 

